using System;

class BirthdayCalculator {
    public static void Run() {

Console.WriteLine();
        Console.WriteLine("Birthday Calculator: ");
        Console.WriteLine("Please input your birthday, such as MM-DD");
        string input = Console.ReadLine();
        string[] p = input.Split('-', ' ');

        int m = Int32.Parse(p[0]);
        int d = Int32.Parse(p[1]);
    
        DateTime thisYearBirthDay = new DateTime(DateTime.Today.Year, m, d);

        int compare = thisYearBirthDay.CompareTo(DateTime.Today);
        int dayPass;
        switch (compare) {
            case -1:
                dayPass = (DateTime.Today - thisYearBirthDay).Days;
                Console.WriteLine("Birthday pass: " + dayPass + "d");
                break;
            case 0:
                Console.WriteLine("Happy Birthday !!!");
                break;
            case 1:
                dayPass = (DateTime.Today - thisYearBirthDay).Days;
                Console.WriteLine("Birthday after: " + (-dayPass) + "d");
                break;
        }
    }
}
